Which of the following factors affect the specific rotation of an optically active substance?   pick one options:    Length of the sample tube   Concentration of the substance   Temperature   Wavelength of the light   All of these

Q: ind an example of a chiral molecule in biology whose enantiomers have markedly different functions.…

A: Enantiomers are the molecules that are mirror images of each other but they are non-superimposable.…

Q: A molecule cannot be polar if: It does not have a C5 principal axis of symmetry Its dipole moment…

A: A molecule cannot be polar if it has completely symmetric distribution of charge. A symmetric…

Q: Which of these projections has optical rotation of zero ?

A: In the question we are provided with three configurations ( of different molecules ). We need to…

Q: The specific rotation of a pure substance is -5.90°. What is the percentage of this isomer in a…

A: The  optical purity is calculated by the formula, Optical purity=observed specific rotationspecific…

Q: Determine how many chiral centers are there?

A: Chiral molecules in which carbon atom with four nonidentical substituents. Such a carbon atom is…

Q: A student isgiven a solution labeled only as 2,3-dihydroxybutane. She used the polarimeter to…

A: The compound that doesn't show any optical rotation is optically inactive. In case of…

Q: What could be the observe rotation  of a 0.86 M solution composed of a sample which has a MW of…

A:

Q: If a substance is known to have a specific rotation of +20.0 deg mL/g dm, what is the concentration…

A: Data given:  Specific rotation of a substance, [α] = + 20.0 deg mL/g dm Observed rotation, αobserved…

Q: The pure D-form of a compound has a specific rotation (D line of sodium, 20° C) of +24°, whereas the…

A: First of all we need to calculate the enantiomeric excess by substracting minor from the major…

Q: a) How many chiral centers exist in the following molecule structure A? b) How many possible…

A: Chiral carbon is the carbon which is attached to four different types of atoms or groups of atoms.…

Q: 3- dimensional structure: CH3CH2CH2CH3 C2H2Cl2 C2H2

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: An aqueous solution containing 10 g of an optically pure compound was diluted to 500 mL with water…

A: The concentration of the compound in g/mL in pure solution is calculated as follows:

Q: If a substance is known to have a specific rotation of -89.3 deg mL/g dm, what is the concentration…

A: Chiral center present compound shows optical activity,  optically active substances rotate plane…

Q: Calculate the observed rotation for a solution of a substance (2.0 g/mL) that is 80% optically pure.…

A: To calculate the observed rotation for a solution

Q: 1. For polyphosphazene shown below, it has the number of repeat units N= 7500 and length / =1.53 Å.…

A: Given, Number of repeat units, N = 7500 length, l = 1.53 Å

Q: SN? displacement of a chiral molecule occurs with inversion of configuration. A True B) False

A: The given statement is, SN² displacement of a chiral molecule occurs with inversion of…

Q: What type of stereochemistry, S or R, does the chiral center in this molecule have?

A: The carbon atom which is attached to four distinct groups is called chiral carbon. S stands for…

Q: Determine the number of possible stereoisomers that exist for the compound C(CH2CHOHCH3)4. Compute…

A:

Q: Determine which of the following structures are chiral and meso-forms.

A: check chiral centre and then POS .

Q: Which of the following ions or molecules has a center of symmetry?

A: A center of symmetry: A point at the center of the molecule. (x,y,z) --->(-x,-y,-z). It is not…

Q: How can you decide whether an observed rotation of a solution of an optically active compound is…

A: Optically active compound: Some chemical compounds have the capability to rotate the plane-polarized…

Q: Determine whether it has the (R) or (S) configuration.

A:

Q: The specific rotation for compound D is -8.5° dm-1(g/mL)-1, what is the specific rotation of…

A: The specific rotation ([α]) of a compound is mathematically expressed as: [α]=αC×l…

Q: What is the proper proper image that should be seen through the eyepiece of the plarimeter when…

A: The proper image that should be seen through the eyepiece of the polarimeter when measuring the…

Q: Determine the total number of IR active vibrational modes of cyclohexane chair conformation

A: A chair cyclohexane consists of these types of internal energy: electronic energy has a value…

Q: Please identify if the following molecule has a chiral center and then select the answer that…

A: Chiral center : A carbon is attached four different groups is called chiral carbon. Above molecule…

Q: Determine whether it is an achiral/chiral molecule: 1. Borazole 2. Phenalene 3. C5H5-

A: chirality is shown by molecule when there is any one chiral centre and if plane of symmetry &…

Q: Compounds with several chiral centres may have configurations referred to as meso. Meso…

A:

Q: Why don’t molecules that contain a plane of symmetry have a chirality center?

A: Since we know that when four different atoms or groups are attached with a carbon atom then it is…

Q: optical rotation

A:

Q: For each of the following structures: a. Identify Chiral Centers b. Identify the chiral carbon…

A: Solution -

Q: cis/trans isomerism can identify the rotation of a compound based on a reference double bond.   a…

A:

Q: What do you mean by Specific Rotation ?

A: To find: The meaning of specific rotation

Q: There are three magnetic poles on magnets.

A: Difine a number of of magnetic poles of magnets

Q: All molecules will always have 3 modes of movement that are associated with rotation True or…

A: Every molecule can not have two modes of movement but for every molecules, there are always three…

Q: For each compound, determine whether the molecule has an internal mirror plane of symmetry. If it…

A: Cis – 1, 2-dibromocyclobutane has 4 carbon ring structures with 2 bromines attached at adjacent…

Q: (S)-2-Bromobutane has a specific rotation of +23.1°. Suppose that a solution is made by dissolving…

A: At a given temperature, the chiral compound will rotate the plane polarised light at a particular…

Q: The barrier to rotation of chloroethane is 3.56 kcals/mol. Predict the energy of the rotational…

A:

Q: A solution of 0.50 g of (-)@epinephrine dissolved in 10.0 mL of diluteaqueous HCl was placed in a…

A: The specific rotation is given by formula, The molarity of the solution is calculated using grams…

Q: H. ОН F H. H. F. ISI

A: Which of these do not contain a plane of symmetry?

Q: Calculate the specific rotation, [a], for a sugar, using equation, a = 120C. Assuming that the…

A: Given: The observed rotation, α = 120 C. And the length of the solution = 15 cm = 1.5 dm…

Q: Nonsuperimposable mirror-image stereoisomers are referred to as _____________.

A: Complete the following statement. Nonsuperimposable mirror-image stereoisomers are referred to as…

Q: No correlation between (R) & (S) designation and the direction of rotation pf plane-polarized light,…

A: R and S designation for an organic molecule is made according to Cahn-Ingold-Prelog priority rules.…

Q: Which compound does not have a plane of symmetry?

A: Plane of symmetry is the plane which will pass through the molecule in such a way that the molecule…

Q: Explain the term "barrier to rotation" ?

A: The difference in energy between most stable and least stable conformation while considering…

Q: III. For each of the following objects, determine whether or not it possesses a plane of State YES…

A: Plane of symmetry is a hypothetical plane which we pass through any object. If that plane cuts the…

Q: In this chapter, you learned that a molecule that possesses a plane of symmetry must be achiral. It…

A:

Q: What could be the observe rotation  of a 0.53 M solution composed of a sample which has a MW of…

A:

Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.